Flexible flat cable with integrated output filter

The present invention relates to a flexible flat conductor having at least two electrically conductive layers, which are at least partially surrounded by an electrically insulating sheath, wherein the electrically conductive layers are insulated from each other by at least one dielectric layer arranged between them. Furthermore, the invention relates to a power supply having such a flexible flat conductor. In order to provide an improved flexible flat conductor and a power supply unit with such a flat conductor, in which the filtering can be improved, the space requirement can be reduced and at the same time the manufacturing costs can be reduced, at least a first of the electrically conductive layers in at least one subregion by recesses so structured